Question about Sony Bravia KDL-37M4000 37 in. LCD HDTV

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Please assist with black screen with audio. - Sony Bravia KDL-37M4000 37 in. LCD HDTV

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Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
Some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

Posted on Aug 27, 2015

  • 1 more comment 
  • Franz Aug 27, 2015

    You mean replace the T-con board?

  • The Knight
    The Knight Aug 27, 2015

    No, the back-light inverter board.

  • The Knight
    The Knight Aug 27, 2015

    For some models of Sony, the said board will be inside the panel [integrated part; and cannot be replaced individually]. If this is the case, the display panel replacement should be done. Contact the authorized service center for Sony; if so. Because, Sony LCD display panels cannot be purchased from local electronic spare part market.

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